Dyfyniad APA

Rojas Alvarado, A. (2017). A new species and three hybrids in the ferns from Cocos Island, Puntarenas, Costa Rica.

Dyfyniad Arddull Chicago

Rojas Alvarado, Alexander. A New Species and Three Hybrids in the Ferns From Cocos Island, Puntarenas, Costa Rica. 2017.

Dyfyniad MLA

Rojas Alvarado, Alexander. A New Species and Three Hybrids in the Ferns From Cocos Island, Puntarenas, Costa Rica. 2017.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.